C#知識點

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1.屬性

//屬性的2種寫法public class person{    private string _name;    public string Name    {        get        {            return _name;        }        set        {            _name=value;        }    }    public int Age    {        get;        set;    }} 

 2.索引器

//外部調用person p=new person;sting str=p[0]public class person{    private string _name;    public string Name    {        get        {            return _name;        }        set        {            _name=value;        }    }    public int Age    {        get;        set;    }        public string Email    {        get;        set;    }//也可以用 sting 索引值,也可以多個參數//可以重載,PS:public string this[int index],public string this[string key]    public string this[int index]    {        get        {            string result="";            switch(index)            {                case 0:                result=this.Name;                break;                case 1:                result=this.Age;                break;                case 2:                result=this.Email;                break;            }            return result;        }    }} 

 

　　

C#知識點